How to see a newly-discovered green comet this week, before it vanishes for 400 years
11
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What is the Oort cloud?
6 votes -
How to catch a glimpse of the comet NEOWISE dazzling the skies right now
5 votes -
Freaky ‘active’ object in Jupiter’s orbit is first of its kind seen by astronomers
4 votes -
New image of interstellar comet 2l/Borisov offers a close-up view and comparison to the size of Earth
5 votes -
Hubble observes comet 2I/Borisov, the first confirmed interstellar comet
8 votes -
A second interstellar object with a hyperbolic orbit comparable to 'Oumuamua has been detected, currently referred to as "gb00234" or "C/2019 Q4 Borisov"
13 votes